See also:

Head airbags
In a lateral impact, the head airbag supports the head. ...

BMW Maintenance System
The maintenance system directs you to required maintenance measures and thereby supports you in maintaining road safety and the operational reliability of the vehicle. ...

Maintaining current speed
Push, arrow 1, or pull, arrow 2, the lever to the resistance point. The car's current speed is stored and maintained. It is displayed on the speedometer and briefly in the instrument cluster. O ...